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Date: Sun, 26 Jun 2005 12:02:45 +1200
From: Jonathan Chen <jonc@chen.org.nz>
To: Svein Halvor Halvorsen <svein-freebsd-questions@theloosingend.net>
Message-ID: <20050626000245.GC38082@osiris.chen.org.nz>
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Cc: questions@freebsd.org
Subject: Re: Chop off end of file
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On Sun, Jun 26, 2005 at 01:57:33AM +0200, Svein Halvor Halvorsen wrote:
> 
> I have a ~70GB, of which the last ~50GB is garbage. I know exactly at what 
> byte I want to cut the file, but I do not have enough free diskspace to do 
> a 
> 
>    dd if=orig of=pre bs=... count=....
> 
> 
> Is it possible to just chop off the end of a file, without making a copy 
> of its beginning?

truncate(1) is your friend.
-- 
Jonathan Chen                      |      To do is to be  -- Nietzsche
<jonc@chen.org.nz>                 |      To be is to do  -- Sartre 
                                   |      Scooby do be do -- Scooby